低负载率下数据机房绿色节能技术应用效果分析  

Application effect analysis of energy saving technology in data center under low load rate

作　　者：黄国瑞 刘宏伟 赵耀[1,2] 代彦军 Huang Guorui;Liu Hongwei;Zhao Yao;Dai Yanjun(Institute of Refrigeration and Cryogenics Shanghai Jiaotong University;Engineering Research Center of the Ministry of Education for Solar Power Generation and Refrigeration)

机构地区：[1]上海交通大学制冷与低温工程研究所 [2]太阳能发电及制冷教育部工程研究中心

出　　处：《制冷与空调》2023年第3期70-76,共7页Refrigeration and Air-Conditioning

基　　金：上海市科学技术委员会科研计划项目(No.19DZ1208603)。

摘　　要：国内大部分数据中心实际运营过程中服务器上架率远低于设计水平,长期处于低负载率运行状态,能耗及碳排放居高不下。对数据中心冷却系统进行水泵变频改造可有效解决低负载率运行冷却系统能源浪费问题。此外,国内数据中心开始利用可再生能源以提高其绿色性能,降低电力成本,降低碳排放。以上海某金融类数据中心为研究对象,利用TRNSYS仿真平台搭建其冷却系统能耗模型,分析进行水泵变频改造和分布式可再生能源利用在数据中心低负载运行时的节能减排效果。结果表明,在负载率10%~25%运行情况下,水泵变频改造后,冷却系统泵耗降低150 kW~168 kW,年均可节约电能约143万kWh;采用分布式光伏发电系统年均发电量约18.976万kWh,用于代替相同发电量的火电,可以做到平均每年节约标准煤57.8 t, CO_(2)减排154.4 t;机房PUE在负载率15%时可由1.79降低至1.51,节能减排效果显著。In the actual operation process,the load rate of the data center is lower than the design level,resulting in high energy consumption and carbon emissions.The trans-formation of variable frequency pump in the cooling system can effectively solve the prob-lem of energy waste at low load rate,and the use of renewable energy in the data center is conducive to improving its green performance and reducing carbon emissions.In this paper,the TRNSYS is used to establish the energy consumption model of the data center.Based on the model,the energy-saving and emission reduction effects of the varia-ble frequency pump and distributed photovoltaic power generation are analyzed.The results show that under the operating condition of 10%-25%load rate,the pump con-sumption can be reduced by 150-168 kW,and the electricity can be saved by 1.43 million kwh a year.Distributed photovoltaic power generation system can generate about 189760 kWh a year and reduce 154.4 tons of CO_(2) emissions.After adopting the above technology,the PUE can be reduced from 1.79 to 1.51 when the load rate is 15%.

关 键 词：数据中心 低负载 水泵变频 光伏发电 TRNSYS PUE 

分 类 号：TB6[一般工业技术—制冷工程]